Improvement in devices for lining journal-boxes



Patented Aug.. 7, 1877.

Inven for:

Witnesses:

lar, d, at its lower end.

UNITED STATES PATEN OEEIoE.

DAVID A. EoPKINs, OF PARK RIDGE, NEw JERSEY.

IMPROVEMENT IN DEVICES FOR LlNING JOURNAL-BOXES.

Specification forming part of Letters Patent N 0. 193,8 l 8, datedAugust 7, 1877; application filed June 28, 1877.

To all whom it may concern.-

- Be it known that I, DAVID A. HOPKINS, of Park Ridge, in the county of-Bergen and State of New Jersey, have invented a new and Improved Devicefor Lining J ournal-Boxes, of which the following is a specification:

Figure 1 is a longitudinal central section of my improved device forlining journal-boxes. Fig. 2 is a transverse section of the same.

Similar letters of reference indicate corresponding parts in all thefigures.

This invention relates to a new construction of mandrel for a mold usedas a means of lining the concave faces of journal-boxes with lead orother comparatively soft metal.

The invention consists in providing a mandrel with two projecting ribs,and between these ribs with parallel ledges or shoulders for the supportof the journal-boxes, all as hereinafter described.

The letter A represents an upright mandrel made of metal of cylindricalor equivalent shape, with a projecting shoulder or col- From this collar11 project parallel with the axis of the mandrel two ribs, 0. a, whichare made part of the mandrel, as clearly shown in Fig. 2. Each rib a hasat one side an adjoining ledge or projection, b, which extends the fulllength of the rib, the two said ledges being between the two ribs a, asshown in Fig. 2.

The journal-box B to be lined is placed upon the shoulder d, between thetwo ribs a, and against the ledges b. These ledges project from the sideof the mandrel sufficiently far to raise the journal-box the requireddistance from the mandrel, and to leave anintermediate space, e, for thereception of the metal with which the box is to be lined.

If it were not for the ledges b the position of the box would not beinvariably alike, as one side of the box might hear directly against thebody of the mandrel, while the other side would be raised away from thesame.

By having the ledges b adjoining the ribs a it is impossible to placethe box against the mandrel otherwise than in the correct position, andI attach much importance to their.

use.

The metal with which the box is to be lined is poured into the space efrom above until it fills said space entirely. The journal, properlylined, is then removed, and another placed against the mandrel in mannerstated.

I claim as my invention- The mandrel A, provided with the shoulder orcollar d, with the parallel ribs a a, and intermediate ledges b,substantially as and for the purpose herein shown and described.

DAVID A. HOPKINS.

Witnesses:

F. v. BRIESEN, GEo. A. JAQUES.

